On 19.3.2012, at 21.16, Alex Ha wrote:
dovecot: auth: Error: BUG: Authentication client gave a PID 7542 of existing connection
Oh, right, PIDs of course aren't unique when you're using multiple servers. Try if the attached patch fixes your troubles. If it does, I'll commit it to hg.
Thanks Timo! I will try the patch and report to you.
Hi Timo!
I tried the patch with 2.0.19 and the dovecot error messages disappeared.
OK, it's going to be included in v2.1.3 and v2.0.20 (if that ever gets released).
I still get a lot of this postfix warnings:
SASL LOGIN authentication failed: Connection lost to authentication server
but only for ips which tried a sasl brute force attack.
"Connection lost to authentication server" could this be because of the dovecot auth penalties? so far i did not get any complaints from users.
The auth penalties wait for max. 17 seconds I think. Looks like Postfix has a timeout of 10 seconds. You could disable auth penalties, or perhaps Postfix should use 20 second limit.